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kotykmax [81]
3 years ago
9

When looking at a graph of a system of equations,

Mathematics
1 answer:
shutvik [7]3 years ago
5 0

Answer:

to solve a system of linear equations graphically we graph both equations in the same coordinate system, the solution to the system will be in the point where the 2 lines intersect.

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The lengths of pregnancies in a small rural village are normally distributed with a mean of 264.1 days and a standard deviation
KiRa [710]

Answer:

The range of the 95% data (X) =  238.3 days <  X < 289.9 days

Step-by-step explanation:

Given;

mean of the normal distribution, m = 264.1 days

standard deviation, d = 12.9 days

between two standard deviation below and above the mean is 96% of all the data.

two standard deviation below the mean = m - 2d

                                                                   = 264.1 - 2(12.9)

                                                                   = 238.3 days

two standard deviation above the mean = m + 2d

                                                                    = 264.1 + 2(12.9)

                                                                     = 289.9 days

The middle of the 95% of most pregnancies would be found in the following range;

238.3 days <  X < 289.9 days

5 0
3 years ago
Factor completely.<br>28 - 7x^2 ​
FrozenT [24]

Answer:

7(4 - x^2)

Step-by-step explanation:

Well you just factor out 7, since that is the GCF. 7(4 - x^2)

Hope this helps

8 0
3 years ago
Chau found an icicle 26 inches long. How long is it in feet?
zimovet [89]
The answer to that question is that the icicle is 2 feet and 2 inches
3 0
3 years ago
Read 2 more answers
What must be true when solving a quadratic equation when using factoring?
Zigmanuir [339]

Answer:

Step-by-step explanation:

The function must be factorable.

For example, x^2 + x - 6= 0  factors to (x + 3)(x - 2) = 0 so the roots are -3 and 2.

x^2 + x - 7 = 0  will not factor so you need another method to solve this.

7 0
2 years ago
Plz help me with my algebra
Rus_ich [418]
The answer is a(x)=x+3
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3 years ago
Read 2 more answers
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